UWP Window Size Manager

Hi, I made a helper tool of sorts that aims to properly remember UWP app sizes when they are launched from another UWP. This has been a quirk of Windows 10 that's been bugging me for the longest time and I finally found the time to sit down and do something about it. The tool and a more detailed explanation of the issue is on https://spritecircle.itch.io/uwpwsm.